Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 11267 1781 16% 0.00 2319 1227 53% 6.0
10 Kinds of People 25747 5237 20% 0.01 4492 3224 72% 5.2
2048 10489 4799 46% 0.00 4650 3968 85% 2.7
2, 4, 6, Greaaat 769 115 15% 0.15 92 38 41% 9.4
3D Printed Statues 13925 6414 46% 0.00 6003 5375 90% 2.0
3D Printer 974 160 16% 0.00 400 122 30% 8.9
3-Sided Dice 2875 237 8% 0.00 472 165 35% 8.7
4 thought 12064 4161 34% 0.00 3994 3372 84% 2.7
A1 Paper 6572 1993 30% 0.00 1976 1571 80% 3.7
Aaah! 35072 16368 47% 0.00 14738 13750 93% 1.5
Abandoned Animal 2475 563 23% 0.03 644 474 74% 5.4
ABC 19173 8690 45% 0.00 8249 7474 91% 2.0
Ab Initio 1769 295 17% 0.09 264 162 61% 7.7
Above Average 12512 5226 42% 0.00 5027 4525 90% 1.8
A+B Problem 9470 935 10% 0.03 1365 451 33% 8.3
A Brief Gerrymander 532 107 20% 0.11 98 48 49% 8.8
Abstract Art 452 148 33% 0.00 122 90 74% 6.5
Abstract Painting 1069 431 40% 0.00 384 313 82% 4.0
Absurdistan Roads II 693 236 34% 0.00 234 156 67% 7.0
Absurdistan Roads III 1764 504 29% 0.02 476 362 76% 5.7
Access Points 489 168 34% 0.01 159 124 78% 5.8
Accounting 1592 465 29% 0.02 432 306 71% 4.6
A Classy Problem 12423 3260 26% 0.01 2825 2198 78% 4.4
ACM Contest Scoring 8329 5217 63% 0.00 4652 4400 95% 1.5
Add 'Em Up! 2526 602 24% 0.01 626 448 72% 4.9
Adding Words 13973 3456 25% 0.00 3256 2551 78% 3.7
Add Two Numbers 1038 770 74% 0.00 744 723 97% 1.2
A Different List Game 7466 518 7% 0.00 981 190 19% 9.3
A Different Problem 39666 14711 37% 0.00 13423 11638 87% 2.8
Adjoin the Networks 2627 679 26% 0.00 579 463 80% 5.6
Administrative Difficulties 1696 324 19% 0.03 352 240 68% 6.4
Ads 821 76 9% 0.00 150 52 35% 6.0
Advanced Causal Measurements 128 41 32% 0.10 41 32 78% 7.5
Adventure Begins 324 101 31% 0.06 108 82 76% 5.5
Adventures in Moving -- Part IV 1769 392 22% 0.00 338 279 83% 4.8
A Favourable Ending 1915 527 28% 0.00 490 384 78% 4.4
A Feast For Cats 3324 1255 38% 0.00 907 780 86% 3.6
A Flea on a Chessboard 961 194 20% 0.01 204 144 71% 5.3
A Horse Shoe-In 109 9 8% 0.45 17 8 47% 9.1
AI Jeopardy 485 59 12% 0.02 65 44 68% 6.1
Air Conditioned Minions 6835 2017 30% 0.00 2071 1607 78% 3.1
Airline Hub 2322 516 22% 0.01 459 274 60% 6.7
Airport Coffee 1293 263 20% 0.04 248 175 71% 6.8
Airport Construction 3648 466 13% 0.02 398 214 54% 7.7
Airport Logistics 70 18 26% 0.00 24 17 71% 7.0
Airports 566 168 30% 0.11 154 111 72% 6.0
Air Rally 6 0 0% -- 2 0 0% 7.3
Akcija 9485 4349 46% 0.00 3918 3507 90% 2.0
Aladin 860 99 12% 0.10 140 31 22% 8.7
Alchemy 175 34 19% 0.02 45 24 53% 8.9
Alchemy 101 458 148 32% 0.05 145 118 81% 3.8
Alea iacta est 45 16 36% 0.19 20 15 75% 6.6
Alehouse 794 334 42% 0.02 294 233 79% 4.7
Alex and Barb 1106 381 34% 0.00 440 344 78% 3.4
Alice in the Digital World 5972 1505 25% 0.01 1356 1072 79% 3.9
Alien Codebreaking 308 31 10% 3.23 56 16 29% 8.0
Alien Microwave 233 92 39% 0.00 122 89 73% 6.6
Alien Numbers 2918 1533 53% 0.00 1503 1375 91% 1.9
A List Game 10615 3237 30% 0.00 3105 2629 85% 2.9
All about that base 3259 1302 40% 0.00 1255 1060 84% 3.0
All Different Directions 1675 774 46% 0.00 735 656 89% 2.5
Allergy Test 637 159 25% 0.00 206 100 49% 8.1
All Friends 1144 217 19% 0.00 203 107 53% 8.8
All is Well 125 36 29% 0.03 34 29 85% 5.8
All Just A Dream 2648 694 26% 0.05 520 400 77% 5.4
All Kill 74 58 78% 0.00 44 36 82% 4.6
Alloys 783 288 37% 0.00 292 247 85% 3.7
All Pairs Shortest Path 13430 2546 19% 0.00 1624 1167 72% 5.7
Almost Perfect 12591 2872 23% 0.00 2937 2337 80% 3.0
Almost Union-Find 9907 1704 17% 0.02 1558 930 60% 6.6
Alphabet 2505 1279 51% 0.00 1210 1026 85% 3.2
Alphabet Animals 3546 1033 29% 0.00 958 783 82% 3.5
Alphabet Spam 10454 6532 62% 0.00 5521 5308 96% 1.4
Alternating Current 685 667 97% 0.00 115 112 97% 1.3 - 7.8
Alternative Anagram 257 82 32% 0.00 74 54 73% 7.9
Alternative Bracket Notation 234 100 43% 0.00 109 89 82% 5.6
Alto Singing 73 30 41% 0.00 31 28 90% 5.1
Altruistic Amphibians 531 144 27% 0.22 121 90 74% 5.1
Amalgamated Artichokes 5044 2261 45% 0.01 1989 1757 88% 2.5
Amanda Lounges 1886 567 30% 0.03 479 391 82% 5.3
A Mazing! 3847 1014 26% 0.09 386 290 75% 5.6
Amazing Adventures 440 132 30% 0.02 151 108 72% 5.9
Amazing Race 439 112 26% 0.29 114 82 72% 6.4
Ambiguous Result 296 66 22% 0.02 97 61 63% 7.1
Amsterdam Distance 2213 1099 50% 0.00 1117 956 86% 2.6
A Multiplication Game 1242 510 41% 0.00 543 424 78% 4.1
Anagram Counting 4628 1854 40% 0.00 1788 1507 84% 2.8
Andrew the Ant 502 150 30% 0.05 158 122 77% 4.7
A New Adventure 1397 209 15% 0.00 218 152 70% 6.0
A New Alphabet 13577 6094 45% 0.00 5703 5245 92% 2.2
An I for an Eye 1256 359 29% 0.00 410 306 75% 4.8
Animal Classification 1666 392 24% 0.03 329 222 67% 6.8
An Industrial Spy 2202 1200 54% 0.02 951 834 88% 3.0
Annoyed Coworkers 273 56 21% 0.04 51 43 84% 4.4
Another Brick in the Wall 4160 2132 51% 0.00 2065 1889 91% 2.0
Another Candies 9935 2778 28% 0.00 2803 2349 84% 2.6
Another Coin Weighing Puzzle 548 154 28% 0.00 133 106 80% 6.5
Another Dice Game 128 80 62% 0.00 81 68 84% 4.4
Another Query on Array Problem 1922 237 12% 0.05 382 169 44% 7.9
Another Substring Query Problem 735 123 17% 0.18 192 81 42% 8.4